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MRC Biostatistics Unit

Real-time tracking of a pandemic, as data accumulate over time, is an essential component of a public health response to a new outbreak. A team of statistical modellers at the Medical Research Council Biostatistics Unit regularly nowcast and forecast COVID-19 infections and deaths. This information feeds directly to SAGE sub-group, Scientific Pandemic Influenza sub-group on Modelling (SPI-M) and to regional teams at UK Health Security Agency (UK HSA).

The work uses a statistical programming model called a transmission model (Birrell et al. 2020), data on daily COVID-19 confirmed deaths from UK HSA (by NHS region and age group), and published information on the risk of dying and the time from infection to death, to reconstruct the number of new COVID-19 infections over time; estimate a measure of ongoing transmission (R); and predict the number of new COVID-19 deaths in different regions and age groups.

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